As of PEP 0484, the Python community is building a statically-typed annotation layer for Python 2 and 3.

For third-party libraries (like Selenium), we can include type hints in stub files that collect class/method type annotations. These stubfiles are collected in a GitHub repository python/typeshed. However, according to the PEP, we need the third party library's permission to do so.

So, Selenium team - would it be okay if we included typehint stubs for your library? This would require no code changes to your own repository.